package liuzhou;

import java.util.Scanner;
public class Main {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		while(in.hasNext()){
			int a=in.nextInt();
			int b=in.nextInt();
			if(a>1000)
			 System.out.println("a<=1000");
			else
				System.out.println(a+b);
		}
	}

}
